CN107804154B - Nylon bracket rubber main spring and manufacturing method thereof - Google Patents
Nylon bracket rubber main spring and manufacturing method thereof Download PDFInfo
- Publication number
- CN107804154B CN107804154B CN201710861952.6A CN201710861952A CN107804154B CN 107804154 B CN107804154 B CN 107804154B CN 201710861952 A CN201710861952 A CN 201710861952A CN 107804154 B CN107804154 B CN 107804154B
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- rubber
- frame layer
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- limiting block
- nylon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a nylon bracket rubber main spring, which comprises a limiting frame body, a rubber connector and a lower support; the limiting frame body is positioned above the lower support and is connected with the lower support through a rubber connector; the limiting frame body is provided with a through hole which is communicated from top to bottom; the limiting frame body sequentially comprises a rubber limiting frame layer and a supporting frame layer from outside to inside; the supporting frame layer sequentially comprises a nylon frame layer and a metal frame layer from outside to inside; the outer sides of the left limiting block and the right limiting block of the rubber limiting frame layer are outwards protruded to form a left thickened part and a right thickened part; the front end of the lower limiting block extends forwards. The invention also discloses a method for manufacturing the nylon bracket rubber main spring all the time. The invention has the advantages of improving the light weight level of the product of the engine suspension, reducing the material cost of production and manufacture, shortening the production and processing period of the engine suspension and improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of automobile engine suspension system machinery, in particular to a nylon bracket rubber main spring and a manufacturing method thereof.
Background
The rubber main spring belongs to an engine suspension system for an automobile; in an engine suspension system, a rubber main spring is one of important components, and the performance of the rubber main spring directly influences the NVH effect of an automobile engine, the control performance of the whole automobile and the comfort of passengers and drivers.
For example, because the vehicle starts, stops and jolts, the rubber main spring is required to provide a certain supporting reaction force to support the engine, the NVH and the operability of the whole vehicle can provide different rubber rigidities, and whether the weight of the whole vehicle is matched with the power of the whole vehicle is an important factor, so that the light-weight work of the whole vehicle is performed at present.
The rubber main spring is one of the indispensable parts of the whole vehicle, and the bracket is also one of the indispensable parts of the rubber main spring; with the popularization of automobiles, light and economical products are also increasingly valued by researchers and promoted in automobile factories.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the nylon bracket rubber main spring which can improve the light weight level of the product of the engine suspension, reduce the material cost of production and manufacture, shorten the production and processing period of the engine suspension and improve the production efficiency and the manufacturing method thereof.
The invention solves the technical problems by the following technical means: a nylon bracket rubber main spring comprises a limiting frame body, a rubber connector and a lower support; the limiting frame body is positioned above the lower support and is connected with the lower support through the rubber connector; the limiting frame body is provided with a through hole which is communicated from top to bottom;
the limiting frame body sequentially comprises a rubber limiting frame layer and a supporting frame layer from outside to inside; the support frame layer sequentially comprises a nylon frame layer and a metal frame layer from outside to inside;
the rubber limiting frame layer comprises an upper limiting block, a lower limiting block, a left limiting block and a right limiting block; the upper limiting block, the lower limiting block, the left limiting block and the right limiting block are combined to form a frame structure which is communicated front and back; the outer sides of the left limiting block and the right limiting block are outwards protruded to form a left thickened part and a right thickened part; the front end of the lower limiting block extends forwards.
Preferably, the material of the rubber limit frame layer comprises natural rubber and/or butadiene rubber.
Preferably, the metal frame layer is made of 20#.
Preferably, the top of the upper limiting block is also provided with a vulcanization process hole.
Preferably, the top of the upper limiting block is also provided with a limiting convex ring, and the limiting convex ring surrounds the periphery of the through hole.
Preferably, the material of the lower support comprises polybutylene adipamide and glass fiber; the mass ratio of the polybutylene adipamide to the glass fiber is 7:3.
Preferably, the nylon framing layer comprises polybutylene adipamide, fiberglass; the mass ratio of the polybutylene adipamide to the glass fiber is 7:3.
Preferably, the lower support is in a honeycomb structure.
The method for manufacturing the nylon bracket rubber main spring comprises the following steps:
the first step: stamping the metal frame layer by a stamping forming machine;
and a second step of: placing the nylon frame layer into an injection molding machine through an injection molding machine to perform injection molding on the supporting frame layer;
thirdly, the supporting frame layer and the rubber limiting frame layer are mutually bonded together to form a limiting frame body through chemical reaction generated by heating;
fourth step: injection molding the lower support by an injection molding machine;
fifth step: and the limiting frame body, the lower support and the rubber connecting piece are vulcanized and molded together at a high temperature through a high temperature vulcanizing press, so that a product is formed.
Preferably, the process conditions for high temperature vulcanization are: vulcanizing temperature 160 ℃, vulcanizing time 10min and vulcanizing pressure 190Kg/cm 2
The invention has the advantages that: according to the invention, the fixed end of the engine is placed into the limiting frame body, so that the engine is hung. The purpose of the work on the whole vehicle is to limit the limit limiting function of the left-right and up-down movement of the power assembly. The engine is hung by a frame, compared with the clamping hanging of the clamping plate in the prior art, the invention has the advantages of more contact points, large contact area and wide limiting azimuth,
the support frame layer is of a nylon frame layer and metal frame layer double-layer structure, so that the weight is reduced, and the cost is reduced. The connecting piece is elastic rubber, and plays a role in bearing the power assembly in the normal running process of the whole vehicle. The lower support is a support made of nylon, can bear the weight of the whole upper end part and the power assembly and is fixed on the side of the vehicle body.
During running of the automobile, the frequency of left and right movement of the engine is far greater than the frequency of front and back or up and down shaking. The left and right thickened parts are formed by protruding the outer sides of the left and right limiting blocks outwards; the thickened limiting block can provide a larger buffering effect and a limiting supporting effect. The front end of the lower limiting block extends forwards, so that a larger supporting area can be provided for supporting the fixed end of the engine, and the suspension stability of the engine is improved.
The limiting frame body is provided with a through hole which is communicated from top to bottom. During high-temperature vulcanization, the rubber can flow from the through holes conveniently so as to form the effect of complete package; can be effectively positioned in the vulcanization mold.
The nylon bracket is designed to be in line with an injection molding process structure, and simultaneously designs a honeycomb structure and increases 30% glass fiber to increase the bearing capacity of the nylon bracket, and reasonable injection pressure is designed within the range of meeting the vulcanization molding process of main spring rubber, and the high-temperature vulcanization process conditions are as follows: vulcanizing temperature 160 ℃, vulcanizing time 10min and vulcanizing pressure 190kg/cm 2 。
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a support frame layer according to the present invention.
Fig. 3 is a schematic structural view of the lower support of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1
As shown in fig. 1-2, this embodiment discloses a nylon bracket rubber main spring, which comprises a limiting frame body, a rubber connector 2 and a lower support 3. The limiting frame body is positioned above the lower support 3 and is connected with the lower support 3 through the rubber connector 2. The limiting frame body is provided with a through hole 4 which is communicated from top to bottom.
The limiting frame body sequentially comprises a rubber limiting frame layer and a supporting frame layer from outside to inside. The supporting frame layer sequentially comprises a nylon frame layer 121 and a metal frame layer 122 from outside to inside.
The rubber limiting frame layer comprises an upper limiting block 111, a lower limiting block 112, a left limiting block 113 and a right limiting block 114. The upper limit block 111, the lower limit block 112, the left limit block 113 and the right limit block 114 are combined to form a frame structure which is conducted front and back. The outer sides of the left and right stoppers 113 and 114 protrude outward to form left and right thickened portions 1131 and 1141. The front end of the lower stopper 112 extends forward. The orientation of the present invention is referred to as the orientation of fig. 1.
According to the invention, the fixed end of the engine is placed into the limiting frame body, so that the engine is hung. The purpose of the work on the whole vehicle is to limit the limit limiting function of the left-right and up-down movement of the power assembly. The engine is hung by a frame, compared with the clamping hanging of the clamping plate in the prior art, the invention has the advantages of more contact points, large contact area and wide limiting azimuth,
the support frame layer is of a double-layer structure of the nylon frame layer 121 and the metal frame layer 122, so that the weight is reduced, and the cost is reduced. The connecting piece is elastic rubber, and plays a role in bearing the power assembly in the normal running process of the whole vehicle. The lower support 3 is a bracket made of nylon, can bear the weight of the whole upper end part and the power assembly, and is fixed on the vehicle body side.
During running of the automobile, the frequency of left and right movement of the engine is far greater than the frequency of front and back or up and down shaking. The outer sides of the left limiting block 113 and the right limiting block 114 are outwards protruded to form a left thickened part 1131 and a right thickened part 1141; the thickened limiting block can provide a larger buffering effect and a limiting supporting effect. The front end of the lower limiting block 112 extends forwards, so that a larger supporting area can be provided for supporting the fixed end of the engine, and the suspension stability of the engine is improved.
The limiting frame body is provided with a through hole 4 which is communicated from top to bottom. The rubber can flow conveniently under the action of the through holes 4, so that the effect of complete wrapping is achieved.
In some embodiments, as shown in fig. 3, the lower support 3 is honeycomb. The honeycomb-structured lower support 3 can increase its bearing capacity.
Preferably, the material of the rubber limit frame layer comprises natural rubber and/or butadiene rubber. The metal frame layer is made of 20# (steel). When the material of the rubber limiting frame layer comprises natural rubber and butadiene rubber, the mass ratio of the natural rubber to the butadiene rubber is 1-3:1.
Preferably, the top of the upper limiting block is also provided with a vulcanization process hole 1111. The top of the upper limiting block is also provided with a limiting convex ring 1112. A stop collar 1112 surrounds the periphery of the through hole. The vulcanization process holes 1111 are used for skeleton positioning, and the limiting raised ring 1112 has a reinforcing effect on one hand and a certain upper end positioning effect on the other hand.
Example 2
The embodiment discloses a method for manufacturing a nylon bracket rubber main spring of the embodiment, which is characterized by comprising the following steps:
the first step: stamping by a stamping forming machine to obtain a metal frame layer 122;
and a second step of: placing the nylon frame layer 121 into an injection molding machine to injection mold the support frame layer;
thirdly, the supporting frame layer and the rubber limiting frame layer are heated to generate chemical reaction so that the elastic rubber and the rubber limiting frame layer are mutually adhered to form a limiting frame body;
fourth step: injection molding the lower support 3 by an injection molding machine;
fifth step: and the limiting frame body, the lower support 3 and the rubber connecting piece are vulcanized and molded together at a high temperature by a high temperature vulcanizing press, so that a product is formed.
Preferably, the material of the lower support 3 comprises polybutylene adipamide and glass fiber. The mass ratio of the polybutylene adipamide to the glass fiber is 7:3.
Preferably, nylon framing layer 121 comprises polybutylene adipamide, fiberglass. The mass ratio of the polybutylene adipamide to the glass fiber is 7:3.
Preferably, the process conditions for high temperature vulcanization are: vulcanizing temperature 160 ℃, vulcanizing time 10min and vulcanizing pressure 190kg/cm 2 。
The nylon bracket rubber main spring has a plurality of abnormal conditions in early development, such as nylon bracket deformation during high-temperature high-pressure vulcanization injection molding due to softer material quality of plastic parts, and product leakage phenomenon caused by incapability of meeting requirements; so that two problems of debugging the product are presented and are contradictory; the two problems are: high-temperature high-pressure vulcanization deformation and low pressure cause undercurrent of the rubber main spring; through many rounds of experiments and detection verification, a solution is found: namely, the nylon bracket is designed to be in line with an injection molding process structure, and simultaneously is designed to be in a honeycomb structure, 30% of glass fiber is added to increase the bearing capacity of the nylon bracket, and reasonable injection pressure is designed in the range of meeting the vulcanization molding process of the main spring rubber, and the high-temperature vulcanization process conditions are as follows: vulcanizing temperature 160 ℃ and sulfurThe chemical reaction time is 10min, and the vulcanization pressure is 190kg/cm 2 。
In summary, the invention adopts the plastic part to replace part of the metal part of the traditional engine suspension, thereby realizing the light weight of the product and reducing the processing material cost of the engine hydraulic suspension. The main spring with the structure can provide better suspension stability.
It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The nylon bracket rubber main spring is characterized by comprising a limiting frame body, a rubber connector and a lower support; the limiting frame body is positioned above the lower support and is connected with the lower support through the rubber connector; the limiting frame body is provided with a through hole which is communicated from top to bottom;
the limiting frame body sequentially comprises a rubber limiting frame layer and a supporting frame layer from outside to inside; the support frame layer sequentially comprises a nylon frame layer and a metal frame layer from outside to inside;
the rubber limiting frame layer comprises an upper limiting block, a lower limiting block, a left limiting block and a right limiting block; the upper limiting block, the lower limiting block, the left limiting block and the right limiting block are combined to form a frame structure which is communicated front and back; the outer sides of the left limiting block and the right limiting block are outwards protruded to form a left thickened part and a right thickened part; the front end of the lower limiting block extends forwards;
the method for manufacturing the nylon bracket rubber main spring comprises the following steps:
the first step: stamping the metal frame layer by a stamping forming machine;
and a second step of: placing the nylon frame layer into an injection molding machine through an injection molding machine to perform injection molding on the supporting frame layer;
thirdly, the supporting frame layer and the rubber limiting frame layer are mutually bonded to form a limiting frame body;
fourth step: injection molding the lower support by an injection molding machine;
fifth step: the limiting frame body, the lower support and the rubber connecting piece are vulcanized and molded together at a high temperature through a high temperature vulcanizing press, so that a product is formed;
the technological conditions of high-temperature vulcanization are as follows: the vulcanization temperature is 160 ℃, the vulcanization time is 10min, and the vulcanization pressure is 190Kg/cm.
2. The nylon stand rubber main spring of claim 1, wherein the material of the rubber stopper frame layer comprises natural rubber or butadiene rubber or a natural rubber and butadiene rubber composite.
3. The nylon bracket rubber main spring of claim 1, wherein the metal frame layer is 20#.
4. The nylon bracket rubber main spring according to claim 1, wherein the material of the lower support comprises polybutylene adipamide and glass fiber; the mass ratio of the polybutylene adipamide to the glass fiber is 7:3.
5. The nylon support rubber main spring of claim 1 wherein the nylon frame layer comprises polybutylene adipamide, fiberglass; the mass ratio of the polybutylene adipamide to the glass fiber is 7:3.
6. The nylon bracket rubber main spring of claim 1, wherein the lower support is honeycomb.
7. The nylon bracket rubber main spring of claim 1, wherein the top of the upper limiting block is also provided with a vulcanization process hole.
8. The nylon bracket rubber main spring of claim 1, wherein the top of the upper limiting block is further provided with a limiting convex ring, and the limiting convex ring surrounds the periphery of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861952.6A CN107804154B (en) | 2017-09-21 | 2017-09-21 | Nylon bracket rubber main spring and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861952.6A CN107804154B (en) | 2017-09-21 | 2017-09-21 | Nylon bracket rubber main spring and manufacturing method thereof |
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| CN107804154A CN107804154A (en) | 2018-03-16 |
| CN107804154B true CN107804154B (en) | 2023-09-29 |
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| CN201802795U (en) * | 2010-08-05 | 2011-04-20 | 上海汽车集团股份有限公司 | Electric automobile power assembly mounting system |
| CN102588501A (en) * | 2011-12-29 | 2012-07-18 | 宁波泛亚汽车部件有限公司 | Hydraulic suspension of engine |
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| CN107804154A (en) | 2018-03-16 |
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